Burmannia malasica

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Burmannia malasica
Systematics
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Yams (Dioscoreales)
Family : Burmanniaceae
Genre : Burmannia
Type : Burmannia malasica
Scientific name
Burmannia malasica
Jonker

Burmannia malasica is a species ofthe Burmanniaceae family . It is only known from a single find in the southwest of Kalimantan .

description

Burmannia malasica is an annual, leaf-green, continuously whitish, thickened, thread-like, succulent herbaceous plant that reaches a height of 5 to 8 centimeters at flowering time. It is mycotrophic . There is no rhizome , the roots are fibrous and short. The leaves are 1.9 to 2.5 millimeters long and 0.7 millimeters wide, they are absent at the base and only appear sporadically on the stem, where they are linear-triangular, scale-like, tapering, close-fitting and keeled.

The inflorescence consists of a single flower . The sessile flowers are 4.4 to 6 millimeters long and whitish. The flower tube is always shorter than the ovary and 1.4 to 1.9 millimeters long and 1.1 to 1.3 millimeters wide, the approximately 4.5 millimeters long and 1.5 millimeters wide wings are halved circular and run from the Middle of the outer lobes to below the base of the ovary . The outer lobes are ovate, erect, with thickened, fleshy edges and 1.2 to 1.5 millimeters long, the inner triangular, upright, tapering and 0.4 millimeters long. The three stamens are sessile and start in the pharynx , below the inner lobes. The connective has two short, lateral arms that carry the thecae , one spur is missing. The stylus is thread-shaped, at its end are the three sessile scars , which are as long as the corolla tube .

The ovaries are round and 2.8 to 3.5 millimeters long. The round, 3 to 3.8 millimeters long capsule opens along irregular transverse slits. The seeds are numerous and elliptical.

distribution

Burmannia malasica is only known from the southwest of Kalimantan , between Soemo Sibak and Benangin at an altitude of 200 meters from very old secondary forest of two-winged fruit trees . There are other sites in Thailand.

Systematics

The species was first described in 1938 by Fredrik Pieter Jonker .

literature

Footnotes directly after a statement confirm this individual statement, footnotes directly after a punctuation mark the entire preceding sentence. Footnotes after a space refer to the entire preceding text.


Individual evidence

  1. a b c d e f Dianxiang Zhang: Systematics of Burmannia L. (Burmanniaceae) in the Old World , pp. 261–263, in: Hong Kong University Theses Online, Thesis (Ph.D.), University of Hong Kong, 1999
  2. a b Rafaël Govaerts (Ed.): Burmannia - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on June 23, 2018.